Mortality and treatment response amongst HIV-infected patients 50 years and older accessing antiretroviral services in South Africa

Abstract Background Little is known about the clinical presentation and outcomes amongst older HIV infected populations accessing ART in sub-Saharan Africa. We compared mortality amongst HIV infected patients accessing ART that were <  50 years to those ≥50 years in Kwa-Zulu Natal, South Africa....

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Main Authors: Halima Dawood, Razia Hassan-Moosa, Nonhlanhla-Yende Zuma, Kogieleum Naidoo
Format: Article
Language:English
Published: BMC 2018-04-01
Series:BMC Infectious Diseases
Subjects:
Online Access:http://link.springer.com/article/10.1186/s12879-018-3083-z
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author Halima Dawood
Razia Hassan-Moosa
Nonhlanhla-Yende Zuma
Kogieleum Naidoo
author_facet Halima Dawood
Razia Hassan-Moosa
Nonhlanhla-Yende Zuma
Kogieleum Naidoo
author_sort Halima Dawood
collection DOAJ
description Abstract Background Little is known about the clinical presentation and outcomes amongst older HIV infected populations accessing ART in sub-Saharan Africa. We compared mortality amongst HIV infected patients accessing ART that were <  50 years to those ≥50 years in Kwa-Zulu Natal, South Africa. Methods We undertook a retrospective review of medical records of patients that accessed HIV services at the CAPRISA AIDS Treatment program (CAT) between June 2004 to December 2012 (N = 4003). HIV infected patients, 14 years or older were enrolled. All-cause mortality and treatment response to ART in those < 50 years to those ≥50 years were compared. A Kaplan-Meier curve and log-rank test were used to compare the cumulative probability of death between the two age groups with the primary endpoint being mortality. Statistical analysis was done using SAS (version 9.4.; SAS Institute Inc., Cary, NC, USA). Results Of 4003 individuals, 262 (6.5%) were ≥ 50 years (older group). The median age in those ≥50 years and <  50 year was 54.5 and 32.0 years, respectively. The younger group was mainly female (64.7%). There was no difference in mortality rate, between the older (6.9/100 person-years (py), 95% confidence interval (CI): 4.7–9.6) and younger group (5.3/100 py, 95% CI: 4.7–5.8) at 60 months (p = 0.137). In the multivariable model older patients had a significantly higher risk of death compared to younger patients. (hazard ratio (HR) 1.60, 95% CI: 1.08–2.39, p = 0.019).The rate of CD4+ cell count increase was higher in those < 50 years (β = 0.34, 95% CI: 0.19–0.50, p < 0.001) with no difference in viral suppression. The older group showed significantly higher prevalence of diabetes (6.3%) and hypertension (21.5%), p < 0.001. Conclusion ART initiation in older HIV infected patients was associated with a higher mortality compared to those younger than 50 years. ART immunological response was less robust in older individuals. The increase in hypertension and diabetes among older patients suggests the need to restructure and integrate primary and specialized health care services into ART services.
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spelling doaj.art-8c02070f18b24b77bbd7e71f461da42e2022-12-21T18:53:52ZengBMCBMC Infectious Diseases1471-23342018-04-011811910.1186/s12879-018-3083-zMortality and treatment response amongst HIV-infected patients 50 years and older accessing antiretroviral services in South AfricaHalima Dawood0Razia Hassan-Moosa1Nonhlanhla-Yende Zuma2Kogieleum Naidoo3Centre for the AIDS Programme of Research in South Africa (CAPRISA)Centre for the AIDS Programme of Research in South Africa (CAPRISA)Centre for the AIDS Programme of Research in South Africa (CAPRISA)Centre for the AIDS Programme of Research in South Africa (CAPRISA)Abstract Background Little is known about the clinical presentation and outcomes amongst older HIV infected populations accessing ART in sub-Saharan Africa. We compared mortality amongst HIV infected patients accessing ART that were <  50 years to those ≥50 years in Kwa-Zulu Natal, South Africa. Methods We undertook a retrospective review of medical records of patients that accessed HIV services at the CAPRISA AIDS Treatment program (CAT) between June 2004 to December 2012 (N = 4003). HIV infected patients, 14 years or older were enrolled. All-cause mortality and treatment response to ART in those < 50 years to those ≥50 years were compared. A Kaplan-Meier curve and log-rank test were used to compare the cumulative probability of death between the two age groups with the primary endpoint being mortality. Statistical analysis was done using SAS (version 9.4.; SAS Institute Inc., Cary, NC, USA). Results Of 4003 individuals, 262 (6.5%) were ≥ 50 years (older group). The median age in those ≥50 years and <  50 year was 54.5 and 32.0 years, respectively. The younger group was mainly female (64.7%). There was no difference in mortality rate, between the older (6.9/100 person-years (py), 95% confidence interval (CI): 4.7–9.6) and younger group (5.3/100 py, 95% CI: 4.7–5.8) at 60 months (p = 0.137). In the multivariable model older patients had a significantly higher risk of death compared to younger patients. (hazard ratio (HR) 1.60, 95% CI: 1.08–2.39, p = 0.019).The rate of CD4+ cell count increase was higher in those < 50 years (β = 0.34, 95% CI: 0.19–0.50, p < 0.001) with no difference in viral suppression. The older group showed significantly higher prevalence of diabetes (6.3%) and hypertension (21.5%), p < 0.001. Conclusion ART initiation in older HIV infected patients was associated with a higher mortality compared to those younger than 50 years. ART immunological response was less robust in older individuals. The increase in hypertension and diabetes among older patients suggests the need to restructure and integrate primary and specialized health care services into ART services.http://link.springer.com/article/10.1186/s12879-018-3083-zHIVOlderAnti-retroviral treatmentMortalitySouth Africa
spellingShingle Halima Dawood
Razia Hassan-Moosa
Nonhlanhla-Yende Zuma
Kogieleum Naidoo
Mortality and treatment response amongst HIV-infected patients 50 years and older accessing antiretroviral services in South Africa
BMC Infectious Diseases
HIV
Older
Anti-retroviral treatment
Mortality
South Africa
title Mortality and treatment response amongst HIV-infected patients 50 years and older accessing antiretroviral services in South Africa
title_full Mortality and treatment response amongst HIV-infected patients 50 years and older accessing antiretroviral services in South Africa
title_fullStr Mortality and treatment response amongst HIV-infected patients 50 years and older accessing antiretroviral services in South Africa
title_full_unstemmed Mortality and treatment response amongst HIV-infected patients 50 years and older accessing antiretroviral services in South Africa
title_short Mortality and treatment response amongst HIV-infected patients 50 years and older accessing antiretroviral services in South Africa
title_sort mortality and treatment response amongst hiv infected patients 50 years and older accessing antiretroviral services in south africa
topic HIV
Older
Anti-retroviral treatment
Mortality
South Africa
url http://link.springer.com/article/10.1186/s12879-018-3083-z
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AT nonhlanhlayendezuma mortalityandtreatmentresponseamongsthivinfectedpatients50yearsandolderaccessingantiretroviralservicesinsouthafrica
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